Fourth edition of The Practical Handbook of Machinery Lubrication retains the easy-reading nature of the original book. However, the content more closely complements Noria's Fundamentals of Machinery Lubrication training course and provides critical information to those who might be considering certification. Chapters have been restructured to heighten the focus on reliability and provide further detail on recent changes in industry practices. Handbook also contains new graphics and illustrations that make the content easier to grasp and implement. The book's premise validates the relationship between improved lubrication and recognition of root causes to gain a keener understanding of the science of tribology.